Questions You Should Know about marine wet exhaust hose

Normally, performance wise, the exhaust can't be too large in diameter. However in a boat, standing water in the exhaust can roll into the engine when the boat pitches as when anchored in a seaway. In this respect, smaller is better because it will contain less water. 3" is fine for your engine and 2" if manufacturer allows.

The hose should slope down all the way to transom then there should be no standing water in the exhaust when stopped and no chance for it to roll into the engine.

So why, if 9-10" above the waterline do you see any water when you remove the hose? Are the mufflers holding it? There are mufflers available that don't hold water. Is the lowest spot not at the transom as it should be?

If the exhaust hose can be rearanged (or elbows raised) so it slopes continuously down to the transom, and the mufflers do not hold water, you are fine with 9-10" drop. If not, a waterlift muffler in the engine space, as shown in a previous post, may be the answer but waterlifts have their own criteria for installation. They must be able to hold all of the accumulated water in the system aft of them for one. They also can fill with water and overflow into the engine under certain conditions.

I would favor correcting the system without taller jacketed elbows because they are expensive and when they leak internally, water will go right into the engine. Your existing elbows could be raised using dry pipe fittings but would have to be wrapped (lagged) for fire safety.

In looking at your photos again, it seems that the installer used up all the drop (and then some) right in the engine space creating a low spot right there. N/G

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When it comes to the complex systems that power marine vessels, certain components play a critical role in maintaining optimal performance and safety. One such component is the marine exhaust hose. In this blog post, we will delve into what marine exhaust hoses are, highlight their strengths, and explain why they are superior to other hose types. Additionally, we will discuss the materials used in their construction and provide some essential tips for basic maintenance.

What are Marine Exhaust Hoses?

Marine exhaust hoses are specially designed hoses used in marine applications to direct and remove exhaust gases generated by the engine. These hoses are integral parts of the exhaust system, ensuring the safe discharge of harmful emissions from the boat or ship.

In part because of their vital function, marine exhaust hoses have particular strengths that make then unique, such as:

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• Heat Resistance: Marine exhaust hoses are engineered to withstand high temperatures and effectively handle the hot exhaust gases produced by the engine. They are constructed using materials capable of withstanding temperatures ranging from 200 to 500 degrees Fahrenheit, ensuring long-lasting performance.
• Corrosion Resistance: Marine environments are notoriously corrosive due to saltwater exposure. Marine exhaust hoses are crafted with materials like EPDM (Ethylene Propylene Diene Monomer) or silicone, which offer excellent resistance to corrosion, saltwater, and other harsh elements. This corrosion resistance ensures the durability and longevity of the hoses.
• Flexibility and Durability: Marine exhaust hoses are designed to withstand the rigors of marine environments, including vibrations and movements. They are engineered to be highly flexible, allowing for easy installation in tight spaces. Additionally, these hoses possess exceptional durability, ensuring reliable performance even in challenging conditions.

Superiority over Other Hose Types

Compared to other hose types, marine exhaust hoses offer several advantages:

• Safety: Marine exhaust hoses are specifically designed to handle high-temperature exhaust gases safely. They are engineered with multiple layers and insulation, reducing the risk of overheating, leaks, and fire hazards.
• Engine Performance: Marine exhaust hoses ensure proper exhaust flow, reducing backpressure and allowing the engine to operate efficiently. This optimized performance can lead to improved fuel economy and overall engine longevity.

Materials Used

Marine exhaust hoses are typically constructed from high-quality materials such as EPDM, silicone, or Nitrile rubber. These materials provide excellent resistance to heat, corrosion, and chemicals commonly encountered in marine environments.

To ensure the longevity and reliability of marine exhaust hoses, basic maintenance is essential.

Here are a few maintenance tips

• Regular Inspections: Routinely inspect the hoses for signs of wear, cracks, or leaks. Replace any damaged hoses immediately to prevent potential issues.
• Cleanliness: Keep the hoses clean and free from debris, grease, or oil build-up. Regularly wipe them down and use mild soapy water to remove any accumulated residue.
• Proper Installation: Follow the manufacturer&#;s guidelines for installation, ensuring correct fittings, clamps, and connections. Avoid sharp bends or kinks that could restrict exhaust flow.
• Replacement Interval: Even with proper maintenance, marine exhaust hoses have a lifespan. It is advisable to replace them every five years or sooner if signs of deterioration are evident.

Call Us

Marine exhaust hoses are essential components of marine vessels, facilitating the safe and efficient expulsion of exhaust gases. Their high-temperature resistance, corrosion resistance, and flexibility make them superior to other hose types. If you would like to learn more or are ready to place an order, don&#;t hesitate to reach out. Our team here at ASJ Industrial Hose and Fitting is a leading provider not just in the Los Angeles but area but across the entire nation. Conveniently located in Corona, California, we&#;re more than ready to help. Give us a call today: (951) 735-.

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